RIR POWER ELECTRONICS LIMITED — Board/Management Information 2026

Feb 9, 2026

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Ref. RIR/SEC/13859/2026

9[th] February, 2026

Bombay Stock Exchange Limited Corporate Relationship Department, 1[st] Floor, Rotunda Building, P. J. Towers, Dalal Street, Mumbai-400001

Scrip Code : 517035

Sub.: Submission of Press Release on Appointment of Mr. N Ramesh Kumar as the Managing Director and C.E.O. of the Company

Dear Sir/Madam,

With reference to the above subject, please find enclosed herewith Press Release on the subject “ RIR Power Electronics Limited appoints N Ramesh Kumar as Managing Director and Chief Executive Officer”.

Kindly take the same on record.

Thanking you.

Yours faithfully,

For RIR POWER ELECTRONICS LIMITED

Bhavin Digitally signed by Bhavin Premji Premji Rambhia Date: 2026.02.09 Rambhia 13:07:46 +05'30' BHAVIN P RAMBHIA COMPANY SECRETARY

Encl : a/a

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RIR Power Electronics Limited appoints N Ramesh Kumar as Managing Director and Chief Executive Officer

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Mumbai, February 9, 2026: RIR Power Electronics Limited (Bombay Stock Exchange: BSE) announced the appointment of N Ramesh Kumar as the Managing Director and Chief Executive Officer with effective from 11[th] February, 2026. Ramesh G. Trasi, who has served as CEO of the company for over 22 years, will transition to the role of Chief Technology Officer, where he will continue to drive RIR Power Electronics’ technology and innovation roadmap.

Ramesh Kumar has over 42 years of experience in driving growth across sales & marketing, business development, and P&L-led business management spanning multiple product lines and geographies. Being a strategic leader, he has consistently strengthened market share through focused expansion, new product development, and brand-building initiatives. Previously, as Global Business Head of Industrial Products and Solutions at CG Power and Industrial Solutions Limited, he has successfully scaled operations, managed complex portfolios, and delivered sustained profitability. He has also been a member of CG Power Executive Committee, the highest decision-making body under the Board, where he played a key role in shaping the company’s business strategy by effectively engaging with customers, channel partners, business partners, and unions. Most recently, he served as CEO at Diffusion Engineers Limited, overseeing domestic and international manufacturing plants and regional sales operations.

Commenting on the appointment, Dr. Harshad Mehta, Non-Executive Chairman , RIR Power Electronics Ltd said , “We are pleased to welcome N. Ramesh Kumar as the new MD and CEO of RIR Power Electronics Ltd. We are confident that under his dynamic leadership, RIR will accelerate innovation, drive strategic execution and strengthen operational excellence across the organization. With nearly four decades of rich experience in scaling businesses, building high-performance teams, and navigating complex global markets, Ramesh’s leadership will be instrumental in advancing our growth strategy, expanding our product portfolio and supporting RIR’s vision to expand its footprint in the global power semiconductor industry. This appointment reinforces RIR’s long-term strategy to enhance our global market presence and leadership.”

On this occasion, N Ramesh Kumar said, “I am honored to take the role of MD and CEO at RIR Power Electronics Ltd. and build on the company’s strong foundation. With the support of our highly talented and committed team, I look forward to leading RIR into its next phase of growth. We remain focused on delivering industry-leading solutions while aiming to set new benchmarks for performance and excellence across the sector.”

About RIR Power Electronics Limited:

RIR Power Electronics Limited (Bombay Stock Exchange: BSE) is a global pioneer in high-power semiconductor solutions, driving innovation and energy efficiency. Its portfolio of high-performance semiconductor devices, assemblies, and energy management systems enables customers to address the evolving demands of modern energy systems. The company's innovative products and solutions empower

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energy performance at the highest level in both existing and emerging applications. Trusted worldwide for reliability and performance, RIR stands at the forefront of sustainable energy innovation—powering progress, one breakthrough at a time. For more information, visit the RIR website at www.rirpowersemi.com.

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